// Copyright 2021 Wechat Group, Tencent
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once

#include <cstdint>
#include <type_traits>

#include <cublas_v2.h>
#include <cudnn.h>

#include "exceptions/tfcc_notimplementederror.h"

namespace tfcc {

template <class T>
struct CUDATypeTraits {
  static cudnnDataType_t getCUDNNType() { throw NotImplementedError(); }
};

template <>
struct CUDATypeTraits<float> {
  static cudnnDataType_t getCUDNNType() { return CUDNN_DATA_FLOAT; }
};

template <>
struct CUDATypeTraits<double> {
  static cudnnDataType_t getCUDNNType() { return CUDNN_DATA_DOUBLE; }
};

template <>
struct CUDATypeTraits<int8_t> {
  static cudnnDataType_t getCUDNNType() { return CUDNN_DATA_INT8; }
};

template <>
struct CUDATypeTraits<int32_t> {
  static cudnnDataType_t getCUDNNType() { return CUDNN_DATA_INT32; }
};

}  // namespace tfcc
